Vacuum-feed device



June 16, 1925. 1,542,509

A. KUENY VACUUM FEED DEVICE Filed Aug. 6, 13324 2 Sheeis-sheet 1 [f8 2o1 I 4.3 .33' 39 47 n 4+ i t M+@ 2 I l 94 J4 e 41 4 42 9C c5753 5 4@ 5I)3l' 1-"24 1 5. L 32 33 if //O *WTV/J3 me/nto@ GWW June 16,1925.v1,542,509

A. KUENY VACUUM FEED DEVICE Filed Aug. e, 1924 2 sheets-.sheet 2 //Z'brtKuerz'y, @www atto z neg Patented June `16, 1925. Y Y

1U STATES PATENT OFFICE. y

ALBERT KUENY, or DANBURY, iowa.

VACUUM-FEED DEVICE.

Application ytiled August 6, 1924. Serial N'o. 739,485.

Tov all whom t may concern: u

. Y Be it known that I, ALBERT KUENY, a citivZen of the United States,residing at Danbury, in the county of Voodbury and State of Iowa, haveinventedcertain'new and usefulV Improvements in Vacuum-Feed Devices, .ofwhich the following is a specification.

My invention relates to improvements in vacuum feed tanks, for use uponautomo biles, for supplying the` ioat chamber of the carburetor withliquid fuel, withdrawn. from a tank arranged at a point remote. from thecarburetor.

An important object of theinvention is to provide a device of the abovementioned character, which is, extremely simple incon struction, cheapto manufacture, and reliable in operation. f

VO her objects and advantages of the invention will be apparent duringthe course of fthe ,following description.

In the accompanying drawings forming a n part of this specification, andin which like numerals are employed to designate like parts throughoutthe same,

Figure 1 is a central vertical section through a device embodying myinvention, Figure` 2 is` a. horizontal section taken on 1110. line 2+-2of Figure 1, u .A i y Figure 3 isa detail section taken on line l,ofFigureul, y l Figure 4 is a horizontalsection taken on linel 4 4 ofFigure 1, and,4

u u Figure 5 isa plan yview of the same.

InV thedrawings, wherein for the purpose of illustration. is shown apreferred embodiment of my invention the numeral 10 designates a tank,having a bottom 11, and a false bottom 12,' which has an airtight litwith ythe tank. This false bottom divides thel tank into an upperfeeding or filling chamber 13 and a lowerdischarge chamber 14, as shown.The numeral 15 designates an air pipe, passing through an opening in thefalseA bottom 12, and having an air tight lit within thisopening, anddischarging into the discharge chamber 14. Thexupper end of this pipeleads to the atmosphere, exteriorly of the filling chamber 13, as shown.Leading into the discharge chamber 14 is a pipe 16, which dischargesinto the float chamber of the carburetor. The tank 10 is arranged nearthe carburetor and above the same, so that gasoline withinthechamber 14will feed by gravity yinto the float chamber of the carburetor, throughthe pipe 16.

The numeral 17 designates a cover or top, adapted to be secured to aflange 13, formed upon the tank 10, by bolts 19 or the like, withsuitable packing 20, between these parts, for effecting an air tightjoint.

Leading into lthe cover 17 is a gasoline supply pipe 21, which extendsto the main tank, generally at the rear of the automobile. A vacuum orsuction pipe 22, leads through .the top 17 into the top of the chamber13,

and this 'pipe is connected with the mani-- fold or suction of theengine. Tlietop 17 carries an air pipe 23, leading at its upper iVbottom 12, and having an air tight lit therein. The valve seat 26 isadapted to be engaged and disengaged by a valve. Q9, arranged above thesame, and rigidly mounted upon a reciprocatory valve rod 39, the lowerend of which is guided in a, spider 31, within the tubular neck 27, butthis spider does not prevent the proper discharge of the gasoline orliquid from the receiving chamber 13 into thedischarge chamber 14, whenthe valve i9 is unseated.

A stop ring 32 is rigidly mounted upon the upper portion of the valverod 30, and a float 33 is slidable upon the rod 30, between the stopring 32 and the valve 29, and is adapted to alter nately contacttherewith.

The valve rod. is provided at its extreme upper end with a collar 33,rigidly attached thereto, and also with a collar 34, spaced from thecollar 33. A vertically swinging lever 35, is pivoted at 36, to astationary arm 37. This lever has its forked end 33 strad dling the rod30, between the collars 33 and 34, and engaging beneath a coinpressiblecoil spring 39, as shown. rlhe opposite end of the lever 35, is forked,as shown at 40, and this forked end straddles a valve 41, and is pivotedthereto at 42. This valve carries a stem 43 slidable in a spider 44.Vhen the valve 42 is shifted to the raised position it engages a valveseat 45, formed upon the lower end of a coupling 46, receiving the nerportions, which are rigidly secured thereto, vand compressible coilsprings 55, are confined between these collars and the blocks 51. `|Theinner ends of the locking rods 53 are forked, as indicated at 56, in

`Figure 2, and theseforked ends are apertured for pivotally receiving apin 57, passing through an opening in the valve rod 30. It might bestated at this point Athat when the valve vrod'O is in the up-.ipermostpositiom the locking rods 53 are swung upwardly past deadcenter, or above their pivots 50, and lwhen the `rod 30 is shifted tothe lowermost position, the inner ends of these locking rods-movedownwardly below dead center or their pivots 50. These rods thereforeserve to lock or hold the rod'BO in the shifted position, in eitherdirection, until removed therefrom, by means of the float.

Theioperation of the device is as follows:

lVith the parts in the position as shown in Figure 1, the fillingoperatioiihas just been completed. The level of the gasoline within thechamber 13l has reached the maximum, and the float 33 has been elevated,carrying upwardly the rod 30. This rod has shifted the locking rods 53upwardly past dead center, andthe rod 30 is locked in theupper position.The valve 11 and valve 29 are now-held open. When the'valve 41opens,'the vvacuum is broken within the filling chamber `13,as pipe 23places this cham- Vber in communication with the atmosphere. V-Heiicethe 'supply of gasoline into'the chamber 13 stops. AThe valve 29 beingopen, the gasoline will now feed into the discharge chamber 14, andhence to theiioat chamber ofthe carburetor. Then the level of thegasoline within the chamber 13 reaches a sufficiently low point, thefloat 33 will descend sufficiently to contact with the valve 29, andmove the rod '30 downwardly, thereby closingv-alve 29 and valve a1. Thesuction from the pipe 22now creates a partial vacuum within the feedchamber 13, and gasoline is supplied into this chamber through the pipe21, until the float 33 again assumes the elevated position, to lift therod 30, and breakthevacuum within the chamber 18.

It is to be understood that the form of my invention herewith shown anddescribed is the suction side of an internal combustion engine, an airinlet leading into thereceiving chamber, avalve controllingcommunication between the receiving "chamber and the discharge chamber,afvalve. to cover and uncover the lair inlet, a substantially-Verticalrod carrying the first named valve and arranged withinthe receivingchamber, afloat mounted upon the ,substantially vertical rod to move;longitudinally thereof-and adapted to Contact with'thevalve carriedbytherod to shift the rod downwardly, aV stop'mounted upon the rod andto engage-with the float when the same reaches the end of'its upwardtravel-whereby Ythe float shifts-the'rod upwardly, means wherebythesecond named valve is shifted byfthefniovement- `of the rod, supportsarranged within the receiving chamberand attached toa part thereof andbeing free fromfconiiection with-the float, locking-'rods pivotallyconnected attheir innerends with the valve rod and slidablylengagingthesupports, and'yielding means to oppose the swinging movementofthe`locking rods andse-rvingto hold the Vsame in positions above orbelowideadcenterwhen shifted thereto.

2. A vacuum l'feed device comprising, a tankliaving a receivingchamber,-an,0utlet 'valve for'the receiving `chamber,.means to receiveVthe Vliquid fuel `from Athe receiving chamber andsupply the `same 'tothe 'float chamber of a carburetor, a substantially vertical rodconnectediwith the outletvalveand extending within the lreceivingchamber, a iioat mounted upon'the rod to-*move longitudinally thereof,sai'dffloat' being adapted to shift the rodlongitudinallywhen moved tothe uppermost or ilowermost positions, a

`liquid fuel-supply pipe leading into the receiving chamber,asuctionpipe leading into the receiving chamber and adapted forconnection with the suction side of anlinternai combustion engine, vanairinlet leading into the receiving chamber, -a'control valve for theair inlet, means wherebythe controlled valve is shifted Iby the movementof vsaid rod, relatively stationary supports-mounted within thereceiving chamber and attached 3. A vacuum feed device comprising, aA

tank having a receiving chamber, an outlet valve for the receivingchamber, a substanl'ially vertical rod connected with the outlet valveand extending into the receiving chamber, means for receiving the liquidfuel from the receiving chamber and to supply the same to the floatchamber of a carburetor, a iioat mounted upon the substantially verticalvalve rod to move longitudinally thereof and adapted to shift the valverod longitudinally7 when moved to the end of its travel in eitherdirection, a liquid fuel supply pipe leading intor the receivingchamber, a suction pipe leading to the receiving chamber and adapted forconnection with the suction side of 'an internal combustion engine, anair inlet leading into the receiving chamber, a control valve for theair inlet, means whereby the control valvev is shifted by the movementof the valve rod, a pair of stationary arms rigidly attached to the topof the receiving chamber and depending therefrom, blocks pivotallymounted upon the arms to swing vertically and having openings, lockingrods having their kends slidable Within the openings of said blocks,compressible coil springs surrounding the locking rods andengaging theblocks to oppose the longitudinal movement of said locking rods and tohold the locking rods in a lower or upper position when shifted theretopast dead center, and means for pivotally connecting the inner ends oflocking rods with the valve rod.

4. A vacuum feed device comprising, a tank having a receiving chamber, atubular outlet for the chamber having ay spider, a

substantiallyvertical valve rod arranged,

within the receiving chamber and having its lower end guided within thespider, an outlet valve secured upon the valve rod to cover and uncover`the tubular outlet, means receiving the liquid fuel from the tubularoutlet and adapted to supply the same to the `float chamber f acarburetor, a liquid fuel supply pipev leading into `the receivingchamber, a suction pipe leading into the receiving chamber, and adaptedfor connecting with the suction side of an internal Vcombustion engine,an air inlet leading into the receiving chamber, a control valve for theair inlet, 'a pivotedlever connected with the control valve andconnected with the substantially vertical valve rod, a float mounted tomove longitudinally upon the valve rod and adapted to shift the valverod when the tioat'moves to the fend of its travel in either direction,stationaryv arms arranged within the receiving chamber above the lioat,blocks pivoted upon the arms to swing vertically and having openings,lockingrods having their outer ends slidable within the openings, of theblocks and having their inner ends pivotally connected with the valverod, stops carried by the locking rods, and compressible coil springssurrounding the locking rods and held between the stops and the blocks.

In testimony whereof I affix my signature.

ALBERT KUENY.

